welding

The action or process of welding:; The joining two materials (especially two metals) together by applying heat, pressure and filler, either separately or in any combination.

• […] and at Dinsdale work will commence in 1957 on a depot to deal with rail welding and track pre-assembly. The plant envisaged will weld new flat-bottom rails into 180-ft. lengths for laying in selected lines.
• This type of physical testing by the non-destructive test is performed to check the welding quality in a closed container such as tanks and pressure vessels.

The action or process of welding:; Binding together inseparably; uniting closely or intimately.

present participle and gerund of weldform-ofgerundparticiple